TWI745020B - Immersed heat sink and a liquid immersion - Google Patents

Abstract

An immersed heat sink and a liquid immersion cabinet include a box body, a cooling liquid, a box cover, a first fan and a second fan; the box body is provided with a cavity, the cavity is filled with cooling liquid, and a server is installed in the cavity and immersed in the cooling liquid; the box cover is arranged on the box body and can close the cavity; the first fan and the second fan are arranged opposite to the box body and above the cavity; the wind direction of the first fan and the second fan are the same, to form a gas wall covering the cooling liquid above the cavity. The steam formed by the cooling liquid cooling the server encounters a low-temperature gas wall, liquefies and returns to the cavity, avoiding the loss of the cooling liquid.

Description

Submerged radiator and liquid immersion cabinet

The application relates to an immersion type heat dissipation device and a liquid immersion cabinet.

Submerged heat dissipation by immersing the high-heat server in the cooling liquid contained in the box can effectively meet the heat dissipation requirements and energy-saving effects of the server. When the box cover on the box is opened, the cooling liquid is easy to evaporate and escape. Causes the loss of the cooling liquid, but the price of the general cooling liquid is relatively high, so the problem of reducing or avoiding the evaporation of the cooling liquid needs to be solved.

In view of the above situation, it is necessary to provide an immersion heat sink and a liquid immersion cabinet that can reduce or avoid the loss of coolant.

Some embodiments of the present application provide a submerged heat sink, including a box body, a cooling liquid, a box cover, a first fan, and a second fan; In the cavity and immersed in the cooling liquid; the box cover is arranged on the box body and can seal the cavity; the first fan and the second fan are arranged oppositely on the box body and located above the cavity; the first fan and the second fan The wind direction of the two fans is the same, so that an air wall covering the coolant exposed from the cavity is formed above the cavity.

In some embodiments of the present application, the submerged heat sink further includes a sensor disposed on the box body, and the sensor is used to detect the opening or closing of the box cover relative to the box body. Closed state; the controller is electrically connected to the sensor, the first fan, and the second fan; when the sensor detects that the cover is in the open state, the controller controls the first The fan works with the second fan; when the sensor detects that the box cover is closed, the controller controls the first fan and the second fan to stop working.

In some embodiments of the present application, the submerged heat dissipation device further includes a first rotating member and a second rotating member respectively rotatably arranged on two opposite side walls of the box; the first fan is arranged On the first rotating member, the second fan is arranged on the second rotating member; when the box cover is in an open state, the first rotating member and the second rotating member rotate to drive the respective The first fan and the second fan rotate to be opposite to each other.

In some embodiments of the present application, the first fan includes a first air inlet and a first air outlet, the second fan includes a second air inlet and a second air outlet; the box cover is relative to the box When the body is opened, the first air inlet is opposite to the second air outlet; when the box cover is closed relative to the box body, the first air inlet and the second air outlet are respectively connected to the cavity The body is relatively.

In some embodiments of the present application, the submerged heat dissipation device further includes a first spacer and a second spacer respectively disposed on two opposite side walls of the box; the first spacer is located at the Between the cavity and the first fan; the second spacer is located between the cavity and the second fan.

In some embodiments of the present application, the wind directions of the first fan and the second fan are parallel to the cavity.

In some embodiments of the present application, the box body includes a first side wall and a second side wall disposed oppositely, and a third side wall located between the first side wall and the second side wall; the box cover rotates The ground is disposed on the third side wall, the first fan is disposed on the first side wall, and the second fan is disposed on the second side wall.

In some embodiments of the present application, the number of the first fan and the second fan are respectively multiple; a plurality of the first fans are sequentially arranged on the first side wall, and are connected to the first fan The two ends of the side wall are connected; a plurality of the second fans are sequentially arranged on the second side wall and connected to the two ends of the second side wall.

The present application also proposes a liquid immersion cabinet, including the above-mentioned submerged heat dissipation device and a server, and the server is arranged in the cavity and immersed in the cooling liquid.

In some embodiments of the present application, the cooling liquid is an insulating, non-volatile, non-flammable, and non-corrosive non-phase change liquid.

In the above-mentioned submerged heat sink, since the first fan and the second fan are respectively provided on opposite sides of the box, the first fan and the second fan are used in the cavity An air wall covering the liquid surface of the cooling liquid exposed from the cavity is formed above. When the cooling liquid cools the server, the steam formed when encountering the low temperature air wall is liquefied and then flows back into the cavity to avoid Loss of the coolant.

200: Liquid immersion cabinet

201: Server

100: Submerged heat sink

10: Cabinet

101: Cavity

11: The first side wall

13: second side wall

15: third side wall

17: Fourth side wall

20: Coolant

30: Lid

31: Groove

40: The first fan

41: The first air inlet

43: The first air outlet

50: second fan

51: second air inlet

53: second air outlet

103: Gas Wall

60: Sensor

70: Controller

81: The first rotating part

82: The second rotating part

91: The first spacer

92: second spacer

FIG. 1 is a schematic diagram of the structure of a liquid immersion cabinet in an embodiment of the application.

Fig. 2 is a schematic structural diagram of the liquid immersion cabinet shown in Fig. 1 when the cover is opened relative to the cabinet.

The following describes the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to another component or may be stored in a centrally located component at the same time. When a component is It is considered to be "installed in" another component, it may be directly installed on another component or may be stored in a centrally installed component at the same time.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field of this application. The terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit the application. The term "and/or" as used herein includes any and all combinations of one or more related listed items.

Some embodiments of the present application propose an immersed heat sink, including a box body, a cooling liquid, a box cover, a first fan and a second fan; the box body is provided with a cavity, the cavity is filled with cooling liquid, and the server to be cooled is installed in The cavity body is immersed in the cooling liquid; the box cover is arranged on the box body and can seal the cavity; the first fan and the second fan are arranged on the box body oppositely and are located above the cavity; the first fan and the second fan The wind direction of the fans is the same, so that an air wall covering the coolant exposed from the cavity is formed above the cavity.

The immersion type heat dissipation device is provided with a first fan and a second fan on opposite sides of the box, and the first fan and the second fan are used to form an air wall above the cavity to cover the liquid surface of the coolant exposed from the cavity , When the cooling liquid cools the server, the steam formed when encountering a low-temperature gas wall liquefies and then flows back into the cavity, avoiding the loss of the cooling liquid.

Hereinafter, some embodiments of the present application will be described in detail with reference to the accompanying drawings. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

Please refer to FIG. 1 and FIG. 2 at the same time. An embodiment of the present application proposes a liquid immersion cabinet 200. The liquid immersion cabinet 200 includes an immersion heat dissipation device 100 and a server 201. The server 201 is installed in the submerged heat sink 100. The submerged heat dissipation device 100 is used to carry the server 201 and perform heat dissipation operations on the server 201. The submerged heat dissipation device 100 includes a box body 10, a box cover 30, a cooling liquid 20, a first fan 40 and a second fan 50. The box body 10 is provided with a cavity 101. The cavity 101 is filled with a cooling liquid 20. The server 201 is installed in the cavity 101 and immersed in the cooling liquid 20. The box cover 30 is disposed on the box body 10 and can close the cavity 101. The first fan 40 and the second fan 50 are oppositely disposed on the box body 10 and located above the cavity 101. The wind directions of the first fan 40 and the second fan 50 are the same, so that an air wall 103 covering the coolant 20 exposed from the cavity 101 is formed above the cavity 101.

In one embodiment, the cooling liquid 20 is an insulating, non-volatile, non-flammable, non-corrosive non-phase change liquid, and has a boiling point of approximately 50-60° C., but it is not limited thereto. The boiling point of the cooling liquid 20 is higher than the temperature of the air.

Since the temperature of the air is generally 20-30°C, the air wall 103 formed by the operation of the first fan 40 and the second fan 50 to flow the air covers the upper part of the cavity 101, and the temperature is close to the temperature of the air. The temperature of the coolant 20 rises due to the cooling of the server 201. When the vapor generated by the vaporization of the coolant 20 flows in the direction of the box body 10 toward the box cover 30, it will be blocked by the gas wall 103, and the high temperature steam encounters the low temperature The air wall 103 returns the condensed liquid to the cavity 101 to avoid the loss of the cooling liquid 20.

In an embodiment, the wind directions of the first fan 40 and the second fan 50 are respectively parallel to the cavity 101, but it is not limited thereto. For example, the wind directions of the first fan 40 and the second fan 50 can also be at an acute angle with the cavity 101 respectively, and only the air wall 103 formed by the first fan 40 and the second fan 50 is located above the cavity 101 and covers from The liquid level of the cooling liquid 20 exposed by the cavity 101 can be blocked by the gas wall 103 when the cooling liquid 20 in the cavity 101 evaporates.

The immersion type heat dissipation device 100 further includes an inductor 60 and a controller 70. The sensor 60 is disposed on the box body 10 and used to detect the opening or closing state of the box cover 30 relative to the box body 10. The controller 70 is disposed on the box body 10 and is electrically connected to the sensor 60, the first fan 40 and the second fan 50 respectively. When the sensor 60 detects that the box cover 30 is in an open state, the controller 70 controls the first fan 40 and the second fan 50 to work. When the sensor 60 detects that the cover 30 is closed, the controller 70 controls the first fan 40 and the second fan 50 to stop working. When the tank cover 30 is closed, the cooling liquid 20 will not evaporate and lose, and the first fan 40 and the second fan 50 do not work, which reduces energy loss.

The box body 10 includes a first side wall 11 and a second side wall 13 opposed to each other, and a third side wall 15 and a fourth side wall 17 opposed to each other. The third side wall 15 is located between the first side wall 11 and the second side wall 13. The box cover 30 is rotatably disposed on the third side wall 15 and can be rotated toward the fourth side wall 17 to cover the box body 10 and thereby close the cavity 101. The first fan 40 is disposed on the first side wall 11. The second fan 50 is disposed on the second side wall 13. The number of the first fan 40 and the number of the second fan 50 are multiple respectively. A plurality of first fans 40 are arranged in sequence on the first side wall 11 and connected to both ends of the first side wall 11, and a plurality of second fans 50 are arranged in sequence on the second side wall 13 and are connected to both ends of the second side wall 13 The ends are connected so that the air wall 103 formed by blowing air by the plurality of first fans 40 and the plurality of second fans 50 can cover above the liquid surface of the coolant 20 exposed from the cavity 101.

It can be understood that in other embodiments, the number of the first fan 40 and the number of the second fan 50 can also be one. The first fan 40 can also be disconnected from the two ends of the first side wall 11, and the second fan 50 can also be disconnected from the two ends of the second side wall 13. It is only necessary that the first fan 40 and the second fan 50 are arranged opposite to each other, and the air wall 103 formed by blowing air can cover the liquid surface of the cooling liquid 20 exposed from the cavity 101, so that the cooling liquid 20 can receive air when the cooling liquid 20 evaporates upwards. The wall 103 blocks.

The submerged heat dissipation device 100 further includes a first rotating member 81 and a second rotating member 82. The first rotating member 81 is rotatably disposed on the first side wall 11. The first fan 40 is disposed on the first rotating member 81. The second rotating member 82 is rotatably disposed on the second side wall 13. The second fan 50 is disposed on the second rotating member 82. When the box cover 30 is in an open state, the first rotating member 81 and the second rotating member 82 rotate to drive the first fan 40 and the second fan 50 to rotate to opposite settings, respectively.

The first fan 40 includes a first air inlet 41 and a first air outlet 43. The second fan 50 includes a second air inlet 51 and a second air outlet 53. When the box cover 30 is opened relative to the box body 10, the first air inlet 41 and the second air outlet 53 are opposite to each other. One of the first fan 40 and the second fan 50 takes in air and the other discharges air. The wind directions of the first fan 40 and the second fan 50 are the same, so that an air wall 103 can be formed above the cavity 101.

When the box cover 30 is closed relative to the box body 10, the first air inlet 41 and the second air outlet 53 are respectively opposite to the cavity 101. The box cover 30 is provided with a groove 31. When the box cover 30 is closed relative to the box body 10, the first fan 40 and the second fan 50 respectively rotate to a position substantially parallel to the cavity 101 so as to be received in the groove 31 of the box cover 30 to reduce the box cover 30.的size.

It can be understood that in other embodiments, the first rotating member 81 and the second rotating member 82 can also be omitted. When the box cover 30 is closed on the box body 10, the depth of the groove 31 of the box cover 30 increases to accommodate the first fan 40 and the second fan 50.

The immersion type heat dissipation device 100 further includes a first spacer 91 and a second spacer 92. The first spacer 91 is disposed on a side of the first side wall 11 facing the second side wall 13 and is located between the cavity 101 and the first fan 40. The second spacer 92 is disposed on a side of the second side wall 13 facing the first side wall 11 and is located between the cavity 101 and the second fan 50. When the tank cover 30 is closed relative to the tank body 10, the first isolating member 91 and the second isolating member 92 separate the first fan 40 and the second fan 50 from the cooling liquid 20, respectively, to prevent the cooling liquid 20 from evaporating upward and condensing Adhesive to the first fan 40 and the second fan 50. When the first fan 40 and the second fan 50 are in operation, the liquid coolant 20 is thrown out of the box 10 due to the centrifugal force, which further reduces the coolant 20 losses.

The immersion type heat sink 100 is provided with a first fan 40 and a second fan 50 on opposite sides of the box 10, and the first fan 40 and the second fan 50 are used to cover the cavity 101 above the cavity 101. The gas wall 103 of the liquid surface of the cooling liquid 20, when the cooling liquid 20 cools the server 201, the steam formed when encountering the gas wall 103 with a low temperature is liquefied and then flows back into the cavity 101 to avoid the loss of the cooling liquid 20.

In addition, those skilled in the art can also make other changes within the spirit of this application. Of course, these changes made in accordance with the spirit of this application should all be included in the solutions disclosed in this application.

201: Server

101: Cavity

11: The first side wall

13: second side wall

15: third side wall

17: Fourth side wall

20: Coolant

30: Lid

31: Groove

40: The first fan

41: The first air inlet

43: The first air outlet

50: second fan

51: second air inlet

53: second air outlet

103: Gas Wall

60: Sensor

70: Controller

81: The first rotating part

82: The second rotating part

91: The first spacer

92: second spacer

Claims (9)

A submerged heat dissipation device includes: a box body provided with a cavity, the cavity is filled with a cooling liquid, a server to be cooled is installed in the cavity and immersed in the cooling liquid; a box cover is arranged in the cooling liquid; On the box body and capable of enclosing the cavity; which further includes: a first fan and a second fan, which are oppositely arranged on the box body and above the cavity; the first fan and the cavity The wind direction of the second fan is the same, so that an air wall covering the cooling liquid exposed from the cavity is formed above the cavity; the sensor is arranged on the box body and is used to detect the box cover Relative to the open or closed state of the box body; the controller is electrically connected to the sensor, the first fan, and the second fan, respectively; when the sensor detects that the box cover is in the open state, The controller controls the first fan and the second fan to work; when the sensor detects that the box cover is closed, the controller controls the first fan and the second fan to stop working . The submerged heat dissipation device according to claim 1, which further includes: a first rotating member and a second rotating member, which are respectively rotatably arranged on two opposite side walls of the box; the first fan is arranged on On the first rotating member, the second fan is arranged on the second rotating member; when the box cover is in an open state, the first rotating member and the second rotating member rotate to drive the The first fan and the second fan rotate to be opposite to each other. The submerged heat dissipation device according to claim 1, wherein the first fan includes a first air inlet and a first air outlet, and the second fan includes a second air inlet and a second air outlet; the box cover When opened relative to the box, the first air inlet is opposite to the second air outlet; when the lid is closed relative to the box, the first air inlet and the second air outlet are Opposite to the cavity respectively. The immersion type heat dissipation device according to claim 3, further comprising: a first spacer and a second spacer, which are respectively arranged on two opposite side walls of the box; the first spacer is located on the Between the cavity and the first fan; the second spacer is located between the cavity and the second fan. The submerged heat sink according to claim 1, wherein the wind directions of the first fan and the second fan are parallel to the cavity. The submerged heat dissipation device according to claim 1, wherein the box body includes a first side wall and a second side wall arranged opposite to each other, and a third side wall located between the first side wall and the second side wall; The box cover is rotatably arranged on the third side wall, the first fan is arranged on the first side wall, and the second fan is arranged on the second side wall. The submerged heat dissipation device according to claim 6, wherein the number of the first fan and the second fan is multiple respectively; a plurality of the first fans are sequentially arranged on the first side wall, and Are connected to both ends of the first side wall; a plurality of the second fans are sequentially arranged on the second side wall and connected to both ends of the second side wall. A liquid immersion cabinet, comprising a submerged heat sink and a server, wherein the submerged heat sink is the submerged heat sink according to any one of claim items 1-7, and the server is arranged in the cavity and submerged In the cooling liquid. The liquid immersion cabinet according to claim 8, wherein the cooling liquid is an insulating, non-volatile, non-flammable, and non-corrosive non-phase change liquid.

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